Home / 13,807.46-19,047.78-9,332.78

Finding the Fourth Proportional to 13,807.46, 19,047.78 and 9,332.78

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Solution

The fourth proportional to 13,807.46, 19,047.78 and 9,332.78 is: 12,874.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,807.46 : 19,047.78 = 9,332.78 : x
  2. Step 2: Convert to fraction form
    13,807.46/19,047.78 = 9,332.78/x
  3. Step 3: Cross multiply
    13,807.46x = 19,047.78 × 9,332.78
  4. Step 4: Simplify right side
    13,807.46x = 177,768,644.99
  5. Step 5: Solve for x
    x = 177,768,644.99/13,807.46
  6. Step 6: Final answer
    x = 12,874.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.